Transcriptome profiling of cardiomyocytes treated with antiretroviral drugs
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ABSTRACT:
PROVIDER: PRJNA777924 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR16773445_1.fastq.gz | Fastqsanger.gz | |||
| SRR16773445_2.fastq.gz | Fastqsanger.gz | |||
| SRR16773446_1.fastq.gz | Fastqsanger.gz | |||
| SRR16773446_2.fastq.gz | Fastqsanger.gz | |||
| SRR16773447_1.fastq.gz | Fastqsanger.gz |
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Project description:The use of antiretroviral therapy (ART) improved the life expectancy of HIV patients through the suppression of HIV propagation in host. However, recent studies suggest that long-term use of ART induces comorbid conditions and heart failure in surviving HIV patients. The mechanism associated with the antiretroviral drugs (ARVs) induced cardiotoxicity and heart failure is not clear. In this study, we performed an RNA sequencing with ARV drugs-treated neonatal rat ventricular cardiomyocytes to explore drugs-induced cardiotoxicity. RNA-sequencing data analysis identified 1756 differentially expressed genes (padj<0.05) in cardiomyocytes. Out of 1756 genes, 701 genes were upregulated, and 1055 genes were downregulated in drug-treated cardiomyocytes. Functional enrichment analysis of differentially expressed genes was performed using clusterProfiler R and ingenuity pathway analysis. Our study showed that upregulated genes were linked with the biological processes associated with apoptosis, cellular movement or locomotion, cellular stress, and immune response. In contrast, down-regulated genes were involved in cell division and metabolism. Interestingly, we also found that ARV drugs treatment significantly upregulates the expression of a set of genes involved in cardiac enlargement and hypertrophy in the heart. Collectively, ARVs treatment in cardiomyocytes induces cardiotoxicity through differentially regulation of pathological genes expression in cardiomyocytes.
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Project description:Transcriptome profiling of cardiomyocytes treated with antioxidants
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Project description:For many therapeutic drugs, including antiretroviral drugs used to treat people living with HIV-1 (PLWH), we have little data on the potential effects on the developing human brain due to limited access to tissue and historical constraints on the inclusion of pregnant populations in clinical trials. Human induced pluripotent stem cells (iPSCs) offer a new avenue to gain insight on how drugs may impact human cell types representative of the developing central nervous system. To prevent vertical transmission of HIV and promote the health of pregnant PLWH, antiretroviral therapy must be initiated and/or maintained throughout pregnancy. However, many antiretroviral drugs are approved for widespread use following clinical testing only in non-pregnant populations and there may be limited information on potential teratogenicity until pregnancy outcomes are evaluated. The integrase strand transfer inhibitor dolutegravir (DTG) is a frontline antiretroviral drug that is effective in viral suppression of HIV but was previously reported to be associated with a slight increase in the risk for neural tube defects in one study, although this has not been replicated in other cohorts. To directly investigate the potential impact of DTG on human cortical neurogenesis, we measured the effects of daily drug exposure on the early stages of corticogenesis in a human iPSC-based forebrain organoid model. We observed deficits in organoid structure and impaired neurogenesis in DTG-treated organoids compared to vehicle-treated control organoids after 20 or 40 days in culture. Our highest dose of DTG (10µM) resulted in significantly smaller organoids with a reduced density of neural rosette structures compared to vehicle-treated controls. Mechanistically, RNA-sequencing and immunohistological analysis suggests dysregulated amino acid transport and activation of the integrated stress response in the DTG-treated organoids, and functionally, a small molecule integrated stress response inhibitor (ISRIB) could partially rescue increased expression of proteins related to cell cycle regulation. Together, these results illustrate the potential for human iPSC-based strategies to reveal biological processes during neurogenesis that may be affected by therapeutic drugs and provide complementary data in relevant human cell types to augment preclinical investigations of drug safety during pregnancy.
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